Fountain pen



May 16,1933.

FOUNTAIN PEN Filed NOV. l. 17.929

/NVENTOR Mora-cus I L Jer/n 36u/114;( CMM,

Patented y May 16, 1933 IABIUS L. SHERIN, 0F BBOOKLINE, MASSACHUSETTS FOUNTAIN PEN' Application led November is ahnost dry and willv thereafter write only a fewV lines before it needs refilling. Again,

it is usual that pens when they begin to flowv freely areaptto blot or flow so freely that good writing -is -more dicult. In fact manufacturers have ceased ,to consider the y free flowing of a fountain pen when it is.

about to run dry, as a desirable quality,and have directed their endeavors to overcome` this feature in most cases.

The suddencessation of fiow of ink orlwrit'- ing iiuid in a pen, often causes great inconvenience. If no ink is immediately available, or if the writer has no time to lill the pen, he may be seriously inconvenienced, and be unable -to continue Writing. It is quite customary for people desiring to avoid thisl difficulty to be provided with two pens,and,

when one is dry, they use the other.

This, however, demands :that the writer` has two ens available and also might be objectiona le onaccount of the delay in putting one away and taking the'other one out. f f In the present invention, I avoid these diiiiculties by providing means within the pen, whereby, when the ink stops flowing, I stillhave available supply of ink suiiicient to continue writing for some time, and by proper` operation, this ink or fiuid iows when the pen is used. R

A form of the present invention is described below in connectionwith the drawinz in which:

igure 1 is a section through the fountain the pen emptied and about i, 1929. semi No. 404.028.

The fountain pen shownin the drawing comprises a casing consisting of the shell 1 in which thepink reservoir sets, and a pen section sleeve 2, over the end of which the shell-1 fits.

The pen section sleeve 2 has the feeder 3 wedged in it. This feeder helps to hold the nib 4- in position and in the pen. Between the pen section sleeve 2 and the feeder 3 is a passage 5, which connectswith .the neck of the. bulb 6 and through which the ink is Idrawn into the bulb or reservoir 6,-when the pen is filled byriirst raising the lever 7 and then placing it in its normal position.

In the feeder 3, is cut another passage 8 by drillingin thechannel 5, perpendicular thereto and still another passage 9 by drilling inv from the inner end of the feeder 3.

The tube 1o may be hard, or it may be.,

flexible. If hard, it preferably has a constriction 12, so that the inkorlluid when it has once been drawn into the bulb 11, will not flow out. l

When the lever 7 is vertical as shown in Figure 2, the plate 13 collapses both bulbs 6 and 11, and drives the ink or writing iuid out of both if there is any ink therein. When the lever is put back in its normal position,

the bulbs begin to expand and the ink is sucked into themi In writing, then, with a `full pen, the ink is rst used from the large reservoir 6, since this ink fiowsout in writin The ink from the reservoir 11, however, oes not How out, but remains therein,veven though the large reservoir is dry. When this occurs, the .writer raises the levez` 7, and forces the ink in the small reservoir 11 into the'passages 8, 9, 5, and the neck of the bulb 6, which is not co1lapsed,'by raising the lever 7.

As shown in Figure 3, the lever 7 is not completely depressed, but to the point wherek it springs into the depression 19 in the plate 13, which action makes an audible click, and

sends som'e of the writing fluid out of the auxiliary reservoir into the paagesV for use. The lever 7, need not be depressed completely,

but may be depressed until the click is heard.

the capillary openings of the bulb 11. That is to say the ink in the bulb 11, will be forced out of the bulb 11, when the lever 7 ispressed, but the space in whichy it is forced will be large enough to hold it so that no ink will be forced from the pen itself.

The small bulb 11 is as shown, smaller than the large bulb 6', and vis preferably within it, although it lnay be outside, and feed the nib of the pen through a common connecting passage.

lNhen the bulb 11 is placed within the bulb G, it is necessary to see that the bulb 11 will completely expand, and not be held collapsed by the ink flowing into the bulb 6. To insure this, the expansion force of the bulb l1 is sufficiently strong to accomplish this.

When the writer notes that his pen is running dry, he simply raises the lever 7, and forces the ink in the bulb y11, out into the passages as explained above Where it is fed to the pen. The lever 7, may be returned and the pen may be used in the ordinary fashion. 4

To remember that the pen needs filling, an indicator may be employed which may be covered or uncovered to show whether there is need of filling the pen. This is shown in the modification of Figure 4, where a hold is drilled in the pen section sleeve 2 on the lower side and the pin 18 is inserted. This pin vpresses the small diaphragm 17 inwards to make a capillary opening, so that theink will not fiow out. When it is desired to use the ink in the auxiliary reservoir, the pin is pulled down by pulling the lever 16 t0 whichthe pin is fastened. The pin held in place by the lever 16, which is riveted or pinned to the pen section sleeve 2.` The pin in its open position will be noticeable and give the writer a reminder that thevauxiliary su ply is being exhausted.

I aving now described my invention, I claimz 1. A fountain pen having a main and auxiliary reservoir for supplying the ink when the main reservoir is depleted, 'a bar member eX-` tending longitudinally over the main reservoir, a lever adapted to depress said bar, said \bar having a depression into which the end of said lever falls when the main and auxiliary .reservoirs are partly compressed producing an audible click. v

2. A fountain pen comprising a casing, a

pen sleeve section fitting in the open end of ly extending flange, a sac for holding the inl fitting over the flange and extending substantially the length of the casing, a pen feeder fitting in said sleeve, said feeder' forming with said sleeve a passage to said sac, a second fixed passage formed in said feeder communicating with the first passage, a collar projectin g from the end of the feeder through which the second passage extends, a sac positioned over the collar,'said passage having a perrnan nent constriction and means operated external of the casing for compressing the sacs simultaneously to lill the same.

3. A fountain pen comprising a casing, a pen sleeve section fitting in the open end of thc casing, said pen section having an inwardly extending flange, a sac for holding the ink fitting over the flange and extending substantially the length of the casing, a pen feeder fitting: in saidy sleeve and having a groove forming a feeding passage extending longitudinally of the feeder to the sac, a second fixed passage positioned in the center of said feeder connnunicating.; to the first passage, a collar extending from said feeder and extending to the second passage, a small sac positioned over the collar, said passage having a permanent constriction and a bar lever pivoted in said casing for filling said sacs simultaneously.

4. A fountain pen comprising a casing, a pen sleeve .section fitting in the open end of the casing, said pen section having an inwardly extendingr fiange, a sac for holding the ink fitting over the fiange and extending substantially the length of the casing, a pen feeder fitting in said sleeve, said feeder forming with said sleeve a passage to said sac, a second fixed passage formedin said feeder communicating with the first passage, a sac, means for mounting the sac over the end of the second passage, means forming a permanent constriction in said second passage and means operated external of the casing for compressing the sacs simultaneously to fill the same.

MARCUS L. QHERIN. 

